How to Modify a Sprinkler valve (for an air cannon)

In this video I show how I modified the sprinkler valve for my air cannon    • Making a compressed air cannon   and my Nerf cannon    • Making a nerf cannon (work in progress)   It's pretty simple. Just two main steps. 1. attach an air gun to release the air behind the diaphragm. 2. seal up all other air inlets Amazon links Air blow gun - http://amzn.to/2r31pJ1 1/4 male air pipe connector - http://amzn.to/2r1qumP Sprinkler valve - http://amzn.to/2q4de3r (or in Australia - https://www.bunnings.com.au/holman-25...)